Credit card details refer to the specific information associated with a credit card that is necessary for making transactions. This typically includes the card number, expiration date, and the cardholder's name. Additionally, there is a security code, often called the CVV, which provides an extra layer of protection during online purchases. When using a credit card, it is important to keep these details secure to prevent unauthorized use. Sharing or exposing credit card details can lead to fraud and identity theft. Always ensure that transactions are made on secure websites and be cautious when providing this information.